Standards

DZ/T 0453.3-2023 Active

DZ/T 0453.3-2023 Method for Chemical Analysis of Tantalum- and Niobium-ore Part 3: Determination of Nb, Ta, Iron, Manganese and W Content by Acid-Solubility-Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES)

Publish Date: 2023-10-31

DZ/T 0453.2-2023 Active

DZ/T 0453.2-2023 DZ/T 0453.2-2023 Methods for chemical analysis of niobium and tantalum ores Part 2: Determination of lithium, rubidium, beryllium, nickel, copper, zinc, niobium, tantalum, tungsten and yttrium contents by closed acid dissolution-inductively coupled plasma mass spectrometry

Publish Date: 2023-10-31

DZ/T 0453.1-2023 Active

DZ/T 0453.1-2023 The Chemical Analysis Methods for NbTa Ore Part 1: Determination of Nb, Ta, and W Content - Closed Acid Solution-Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) Method

Publish Date: 2023-10-31

DZ/T 0452.3-2023 Active

DZ/T 0452.3-2023 The Chemical Analysis Methods for Rare Earth Ore - Part 3: Determination of Lithium, Beryllium, Scandium, Manganese, Cobalt, Nickel, Copper, Zinc, Gallium, Rhenium, Niobium, Molybdenum, Indium, Cesium, Tantalum, Tungsten, Thallium, Lead, Bismuth, Thorium, Uranium and 15 Rare Earth Elements - Determination by Mixed Acid Digestion and Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

Publish Date: 2023-10-31

DZ/T 0452.2-2023 Active

DZ/T 0452.2-2023 The Chemical Analysis Methods for Rare Earth Ore Part 2: Determination of Aluminum, Iron, Calcium, Magnesium, Potassium, Sodium, Titanium, Manganese, Phosphorus and 15 Rare Earth Elements Content by Means of Mixed Acid Digestion and Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES)

Publish Date: 2023-10-31

DZ/T 0452.1-2023 Active

DZ/T 0452.1-2023 The Chemical Analysis Methods for Rare Earth Ore Part 1: Determination of Silicon Dioxide, Aluminum Oxide, Iron Oxide, Calcium Oxide, Magnesium Oxide, Potassium Oxide, Sodium Oxide, Titanium Dioxide, Manganese Oxide, Phosphorus Dioxide, Strontium and Barium Content - Liquid Molten Borate-Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) method

Publish Date: 2023-10-31

DZ/T 0451-2023 Active

DZ/T 0451-2023 Guidelines for Developing Standard Methods of Geological Experimental Test Methods

Publish Date: 2023-10-31

DZ/T 0450-2023 Active

DZ/T 0450-2023 Geological Disaster Monitoring Data Communication Technology Requirements

Publish Date: 2023-10-31

DZ/T 0449-2023 Active

DZ/T 0449-2023 Geological Disaster Meteorological Risk Early Warning Specification

Publish Date: 2023-10-31

DZ/T 0448-2023 Active

DZ/T 0448-2023 The Fine Investigation Specification for Landslide, Collapse and Mudslide Disasters

Publish Date: 2023-10-31

DZ/T 0447-2023 Active

DZ/T 0447-2023 Clastric collapse investigation specifications (1:50,000)

Publish Date: 2023-10-31

DZ/T 0446-2023 Active

DZ/T 0446-2023 Ground settlement and ground crack optical fiber monitoring regulations

Publish Date: 2023-10-31